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agasfer [191]
3 years ago
5

What is the volume of a hemisphere with a diameter of 7.7 ft, rounded to the nearest tenth of a cubic foot?

Mathematics
1 answer:
Nady [450]3 years ago
6 0

Answer: 119.57 cu. ft.

Step-by-step explanation:

Volume of a hemisphere = (2/3)πr^3

= (2/3) * 22/7 * 3.85^3

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ki77a [65]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Solve this system of equations using substitution. Put your answer in ordered pair form, (x,y).
Gelneren [198K]
2x + 5y = 2
-3x - y =-3

-3x - y = -3
y = 3x - 3

substitute y = 3x - 3 into the first equation.

2x + 5y = 2
2x + 5(3x - 3) = 2
2x + 15x - 15 = 2
17x - 15 = 2

solve for x in 17x - 15 = 2

17x - 15 = 2
17x = 2 + 15
17x = 17
x = 1

substitute x = 1 into y = 3x - 3

y = 3x - 3
y = 3(1) - 3
y = 3 - 3
y = 0

(1, 0) << the answer

hope this helped, God bless!
8 0
3 years ago
Mrs. Walters drove 360 miles of gas on 25 gallons of gas. Mr. Walters drive 480 miles on 32 gallons of gas. A. find the mileage
NikAS [45]
A.360 / 25= 14.4
B. 480 / 32= 15

B Is getting better mileage 
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3 0
3 years ago
Using 3 5 and 8 once to equal 104
igomit [66]
Trial and error tried 8 x 6 =48 i used 10 x 5 to get closer to 100 10 x 5= 50 50+ 48= 98 all I need is 6 which is 2 x 3 8 x 6 = 48 5 x 10= 50 3 x 2 = 6 Total = 104 Hope this helps
7 0
3 years ago
Brian is solving the equation x squared minus three-fourths x = 5. What value must be added to both sides of the equation to mak
Allushta [10]

Answer:

  StartFraction 9 Over 64 EndFraction

Step-by-step explanation:

He must add the square of half the x coefficient. That coefficient is 3/4, so half of it is 3/8 and the square of that is ...

  (3/8)^2 = 9/64

Brian mus add 9/64 to boths sides of the equation.

6 0
3 years ago
Read 2 more answers
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